Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0000950170-25-019874-index-headers.html | 2025-02-13 16:06:09 | |
| 0000950170-25-019874-index.html | 2025-02-13 16:06:09 | |
| 0000950170-25-019874.txt | 2025-02-13 16:06:09 | |
 0000950170-25-019874-xbrl.zip | 257752 | 2025-02-13 16:06:09 |
| FilingSummary.xml | 1726 | 2025-02-13 16:06:09 |
| Financial_Report.xlsx | 5748 | 2025-02-13 16:06:09 |
| fisi-20250212.htm | 52944 | 2025-02-13 16:06:09 |
| fisi-20250212.xsd | 25063 | 2025-02-13 16:06:09 |
| fisi-20250212_htm.xml | 4750 | 2025-02-13 16:06:09 |
| fisi-ex99_1.htm | 9132 | 2025-02-13 16:06:09 |
 img145321324_0.jpg | 323901 | 2025-02-13 16:06:09 |
 img40780056_0.jpg | 323901 | 2025-02-13 16:06:09 |
| MetaLinks.json | 18164 | 2025-02-13 16:06:09 |
| R1.htm | 39714 | 2025-02-13 16:06:09 |
| report.css | 2767 | 2025-02-13 16:06:09 |
| Show.js | 1084 | 2025-02-13 16:06:09 |